Desgrandchamps; Guy
Patent Applications and Registrations
Patent applications and USPTO patent grants for Desgrandchamps; Guy.The latest application filed is for "steps in a process for the production of at least one alkyl tertiobutyl ether from natural gas".
- Desgrandchamps; Guy - Billere FR
- Desgrandchamps; Guy - Pau FR
| Patent | Date |
|---|---|
| Steps in a process for the production of at least one alkyl tertiobutyl ether from natural gas Grant 5,659,090 - Cameron , et al. * August 19, 1 | 1997-08-19 |
| Apparatus for burning hydrogen sulphide Grant 4,596,699 - Desgrandchamps , et al. June 24, 1 | 1986-06-24 |
| Process to produce sulphur from two acid gases, both containing hydrogen sulphide and one of which contains ammonia Grant 4,395,390 - Desgrandchamps , et al. July 26, 1 | 1983-07-26 |
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